*{
    font-size: 14px;
    box-sizing: border-box;
}
body{
    background-color: #f6f6f6;
}
a{
    color: black;
}
header{
    background-color: white;
}
.head{
    height: 38px;
    background-color:#dfdfde ;
    line-height: 38px;
 
}
.head>div div:first-child{
    float: left;
   
}
.head>div div:last-child{
    float: right;
    word-spacing: 10px;
}
.head>div{
    width: 996px;
    margin: 0 auto;
    padding-left: 9px;
    padding-right: 24px;
}
nav{
    width: 996px;
    height: 96px;
    margin: 0 auto;
    /* background-color:white; */
}
nav>div img{
    margin: 20px;
    float: left;
}
.nav-fl h3{
    font-size: 25px;
}
.nav-fl span{
    font-size: 14px;
    word-spacing: -4px;
}
.nav-ul{
    float: right;
   
}
.nav-ul li{
    text-align: center;
    cursor: pointer;
    height: 100%;
    /* border:2px solid black; */
    padding: 27px 10px;
    float: left;
}
.nav-fl{
    height: 25px;
    line-height: 23px;
    margin: 32px 0 0px;
    float: left;
}
.nav-ul li{
    position: relative;
}

.nav-ul li::after{
    content: "";
    display: inline-block;
    width:0;
    height: 3px;
    background-color: #3c9cd3;
    position: absolute;
    left: 0;
    bottom: 0;
}
.nav-ul li:hover::after{
    width: 100%;
}
.nav-ul li:hover{
    background-color: #faf8f8;
}

section .banner{
    margin: 0 auto;
    position: relative;
    box-shadow: 0px 5px 5px #dbe9f0;
}
.banner img{
    width:100%;
}
.box1,.box2,.box3,.box4{
    width: 10px;
    height: 10px;
    border-radius: 50px;
    background-color: #a3d3e9;
    position: absolute;
    bottom: 0%;
    z-index: 3;
}
.box1{
    left: 46%;
}
.box2{
    left: 48%;
}
.box3{
    left: 50%;
}
.box4{
    left: 52%;
}
.box1:hover {
    background-color:#2395cb;
}

.box2:hover{
    background-color:#2395cb;
}
.box3:hover{
    background-color:#2395cb;
}
.box4:hover{
    background-color:#2395cb;
}
.news{
    width: 996px;
    margin: 60px auto;
    overflow: hidden;
}
.news-li{
    width: 33.3%;
    float: left;
    /* margin:0 auto; */

}
.item{
    width: 314px;
    /* height: 300px; */
    margin:0 auto;
}
.item-top{
    height:140px ;
    position: relative;
}
.news li:first-child .item-top{
    background-color:#2395cb;
}
.news li:nth-child(2) .item-top{
    background-color:#3ed1a4 ;
}
.news li:last-child .item-top{
    background-color: #895E9F;
}
.item-top-content{
    text-align: center;
    color: white;
    line-height: 25px;
    padding: 10px;
    position: relative;
}
.item-top-content::after{
    content: "";
    background-color: white;
    width: 90px;
    height: 1px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}
.item-top::after{
    content: "";
    border-top: 20px solid #2395cb;
    border-left: 20px solid transparent;
    border-right: 20px solid transparent;
    position: absolute;
    left: 50%;
    top: 100%;
    transform: translateX(-50%);
    z-index: 1;
}
.news li:first-child .item-top::after{
    border-top: 20px solid #2395cb;
}
.news li:nth-child(2) .item-top::after{
    border-top: 20px solid #3ed1a4;
}
.news li:last-child .item-top::after{
    border-top: 20px solid #895E9F;
}
.item-bottom{
    margin-bottom: 10px;
    background-color: white;
    position: relative;
    padding: 20px;
    border: 1px solid #e3e3e3;
    box-shadow: 0px 2px 2px #e3e3e3;
    
}
.itb-top{
    overflow: hidden;

}
.itb-top>div img{
    height: 80px;
    width: 90px;
    float: left;
}
.itb-top h5{
    line-height: 40px;
}
.itb-top>div p{
    margin-left: 140px;
    line-height: 20px;
    letter-spacing:2px;
    font-size: 10px;
}
.itb-top div{
    height: 100px;
    overflow: hidden;
    border-bottom: 1px dashed gray;
    
}
.itb-bottom{
    padding-top: 20px;
    padding-bottom: 20px;
    padding-left: 20px;

    position: relative;
}
.itb-bottom li{
    font-size: 10px;
    line-height: 20px;
}

.itb-bottom>ul li::before{
    content: "";
    height: 5px;
    width: 5px;
    background-color: skyblue;
    border-radius: 50%;
    position: absolute;
}
.itb-bottom>ul li:nth-child(1)::before{
    left: 0%;
    top: 28%;
}

.itb-bottom>ul li:nth-child(2)::before{
    left: 0%;
    top: 48%;
}

.itb-bottom>ul li:nth-child(3)::before{
    left: 0%;
    top: 68%;
}
.itb-p p:first-of-type{
    text-align: center;
    color:#2395cb;
    font-size: 14px;
    font-weight: bold;
    margin: 10px 0;
}
.itb-p p:last-of-type{
    text-align: center;
    font-size: 10px;
}
.itb-img img{
    width: 290px;
    height: 180px;
}
.itb-img3 img{
    margin-top: 15px;
    width: 270px;
    height: 110px;
}
.itb-p3{
    margin-top: 15px;
    padding: 28px;
    background-image: url("../img/itm_bg.jpg");
    background-size:contain;
    background-repeat: no-repeat;
}
.about{
    /* width: 996px; */
    margin: 0 auto;

}
.about .ab-head{
    text-align: center;
    position: relative;
    background-color: #f6f6f6;
}
.ab-head h4{
    font-size: 20px;
    line-height: 30px;
}
.ab-head h5{
    color:#cbcbcb ;
    font-size: 12px;
}
.ab-head::before{
    content: "";
    height: 1px;
    width: 65px;
    background-color: #cbcbcb;
    position: absolute;
    left: 41%;
    top: 80%;
}
.ab-head::after{
    content: "";
    height: 1px;
    width: 65px;
    background-color: #cbcbcb;
    position: absolute;
    left: 54%;
    top: 80%;
}
.ab-content{
    margin: 40px auto;
    background-image: url(../img/ab_bg.jpg);
    background-size: cover;
    text-align: center;
    padding-bottom: 20px;
}
.ab-p{
        /* text-align:center; */
        width: 996px;
        margin: 0 auto;
        padding:40px 50px ;
        text-align: center;
}
.connet{
    background-color: white;
    padding: 20px;
}
.cn-content{
    width: 996px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
}
.cn-fl-top{
    overflow: hidden;
    width: 420px;
}
.fl-top-fl{
    float: left;
    text-align: center;
   
}
.fl-top-fr div{
  
    line-height: 30px;
    font-size: 14px;
}
.fl-top-fr img{
    height: 16px;
    width: 16px;
    margin: 0px 20px;
}
.cn-fl{
    float: left;
}

.cn{
    margin-bottom: 20px;
}
.cn-fl-top{
    margin: 20px;
}
.cn-fr{
    color: gray ;
    margin-top: 20px;
}
.cn-fr div{
    line-height: 30px;
    margin-bottom: 10px;
}
.cn-fr div input{
    width: 500px;
    height: 30px;
    border: 1px dashed #d4d2d2;
    background-color: #f9f8f8;
}
.cn-fr div textarea{
    width: 500px;
    height: 100px;
    background-color: #f9f8f8;
    border: 1px dashed #d4d2d2;
    resize: none;
}
.cn-fr button{
    width: 80px;
    height: 30px;
    background-color:#3c9cd3 ;
    color: white;
}
footer{
    background-color:#3c9cd3 ;
    text-align: center;
}
.ft-top{
    color: white;
    line-height: 50px;
    letter-spacing: 3px;
}
.ft-top a{
    font-size: 10px;
    color: white;
    letter-spacing: 3px;
}
.ft-top>p img{
    width: 20px;
    height: 20px;
    margin-left: 10px;
    vertical-align: sub;
}
.ft-top p{
    font-size: 10px;
}
.ft-bottom{
    line-height: 30px;
    color: white;
    font-size: 10px;
    background-color:#1c1b29 ;
}